Operating System (OS)
A public key encryption system

allows anyone to decode the transmission
allows only the correct receiver to decode the data
None of these
does not encode the data before transmitting it
allows only the correct sender to decode the data

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Operating System (OS)
The term "operating system" means

the way a floppy disk drive operates
None of these
a set of programs which controls computer working
the way a computer operator works
conversion of high level language into machine code

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Operating System (OS)
A real time operating system is most likely to be used for which of the following task?

Controlling the fuel injection system of an automobile engines
Managing the access to system files in a laptop computers
Controlling access to a shared printer in a network
Ensuring that system clock works correctly on server

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Operating System (OS)
Memory

is the device where information is stored
None of these
is a device that performs a sequence of operations specified by instructions in memory.
is typically characterized by interactive processing and time-slicing of the CPU
is a sequence of instructions

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